Question

If raster resolution decreases (cell size increases), which of the following occurs?

• A. Spatial detail decreases
• B. Data volume increases
• C. Spatial detail increases
• D. Accuracy always improves

Hint:

Remember: \[ \boxed{ \text{Large Cell Size} \Rightarrow \text{Low Resolution} \Rightarrow \text{Less Spatial Detail} } \]

Answer 1

The Correct Option is A

Concept: Raster resolution is determined by the cell size. Increasing the cell size means lower spatial resolution, resulting in loss of fine spatial details.

Step 1: Understand raster resolution. \[ \boxed{ \text{Larger Cell Size} \rightarrow \text{Lower Resolution} } \]

Step 2: Determine its effect. Lower resolution causes
• Reduced spatial detail.
• Less precise representation of objects.
• Usually smaller data volume. Hence, \[ \boxed{\text{Spatial detail decreases when raster resolution decreases}.} \] Therefore, the correct option is \[ \boxed{(A).} \]